This may very well be the same Andrew J Bilyeu. Both items from Missouri's Union Provost Marshal Papers: 1861 - 1866
Name: Bilyeu, Andrew
County: Miller
Subject: Prisoner being sent with Rufus Phillips; arrested with band of 5 others, his father killed; he escaped; has been plundering; witnesses William Salsman, John Martin, James S. Watson, George Martin
Date: 11-12-1861
Reel #F1383
Name: Bilyeu, Andrew J.
County: Pulaski
City: Waynesville
Subject: Charges from Provost Marshal's office of aiding and abetting rebellion.